The area of a semi-circle is equal to half of the area of a circle with the same radius. Area of a Semi-Circle Formula So the area of a semicircle is ½ πr2, where r is the radius of the circle. To find the area of a semi circle, follow these simple steps: find the ...
Area of a Semicircle Formula To find the area of a half circle, the formula is pi times the radius squared. Since a semicircle is half of a circle, the area of a semicircle is half of a circle. So, the formula to find the area of a semicircle is pi times radius squared divided by...
In the figure above, AC is the diameter of the semicircle. The inscribed angle of the semi circle is formed by drawing a line from each end of the diameter to any point on the circumference of the semi circle. The angle thus formed is 90-degree. In this case, angle ABC is 90-degree...
In order to find the total space enclosed by the sector, we use thearea of a sectorformula. The area of a sector can be calculated using the following formulas, Area of a Sector of Circle = (θ/360º) ×πr2, where, θ is the sector angle subtended by the arc at the center, ...
So, the formula for calculating the area of a semicircle is: Area = ½ ×πr² Recommended Worksheets More Worksheets Finding the Perimeter/Circumference of a Semicircle The perimeter or circumference describes the total length of the boundary of the semicircle. ...
What is the Formula for the Area of a Circular Sector Using Radians? Again, to solve for the area, the central angle and radius must be known. The procedure is similar to what we did in the previous section. We have the relation 2πα=πr2A which is similar to the previous one, ...
Table showing the formula to calculate area for several two-dimensional shapes ShapeFormula Square A = a2 Rectangle A = l × w Triangle A = bh ÷ 2 Trapezoid A = 1/2(a + b)h Parallelogram A = b × h Rhombus A = a × h Kite A = pq ÷ 2 Circle A = πr2 Semicircle A = ...
Asemicircle=Acircle2=π⋅r22Asemicircle=2Acircle=2π⋅r2 The area of a semicircle is just half of the area of a full circle. But can we use this rule for the circumference of a semicircle? Perimeter of a semicircle formula (aka circumference of a semicircle) If you want to calculate...
of the circle. If the length of an arc is greater than a semicircle, it is called theMajor arc, and if the length of an arc is smaller than a semicircle, it is called aMinor arc. The sum of lengths of the major arc and the minor arc will always give the circle’s circumference....
Semicircle area calculator. How to use the area of a circle calculator? Diameter to area and radius to area. You can easily calculate everything, the area of a circle, its diameter, and its radius, using our area of a circle calculator in a blink of an eye: Determine whether your given...